
Crowleys Ridge rises distinctly above the flatlands of the Mississippi Valley, creating a dramatic geographical divide in this 1958 survey of Clay County. The elevated terrain of the ridge is dotted with rural institutions like Cummings Chapel, Gravel Hill Ch, and the Knob Sch, while the low-lying western plains are defined by an extensive network of drainage projects including Cane Creek Ditch and Ditch No 19. This complex system of flumes and ditches illustrates the mid-century engineering efforts to manage the wetlands between the Black River and the Cache River.
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